maureen naylor joins us with the story. the signs are in place tonight. you can see part of the express way from where we are standing. seven hours from now north carolina's first toll lane will officially open. but carpoolers need to take precautions to make sure they are not charged unnecessarily. >> last-minute computer tests were underway this evening on new sensors along southbound 680 in fremont starting at 5:00 tomorrow morning, the system will give solo drivers the option to pay to drive with carpoolers in this express lane. marked off with double white lines. >> i think i would be willing to pay money as a single driver to drive on the express lane. >> why? >> because it will get me where i need to go faster. >> it is stupid because it is a lane that is already there that the taxpayers already paid for. so why make us pay more to just drive on it. >> the toll lane starts at highway 84 and stretches 14 miles stretch to highway north. here is how it works. you enter the express lane at certain points. on weekdays between 5:00 in the morning and 8:0